<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style type="text/css">
        dl, dt, dd, ul, li {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .l-list dt {
            display: block;
            height: 200px;
            float: left;
            width: 100px;
        }
        .l-list dd {
            display: block;
            float: left;
            width: 200px;
        }
    </style>
</head>
<body>
<div style="width: 300px; height: 200px; border: 1px solid #CCCCCC;">
    <form>
        <dl class="l-list">
            <dt>单位选择：</dt>
            <dd><input type="radio" name="sel" value="0" id="a"><label for="a">笔</label></dd>
            <dd><input type="radio" name="sel" value="1" id="b"><label for="b">万笔</label></dd>
            <dd><input type="radio" name="sel" value="2" id="c"><label for="c">亿笔</label></dd>
        </dl>
    </form>
</div>
</body>
</html>